Questions on UI for Xamarin Forum

1 answer

147 views

In the Landscape mode (IOS), the soft keyboard hides RadAutoCompleteView.

Hello, I am using RadAutoCompleteView control on my code and it works perfectly for Android and IOS. Still, when I use landscape mode for small screens (an issue for IOS and phone is iPhone XR) native soft keyboard hides control and I can't click or move it to the top of the screen to choose some elements. What kind of solution do I have to control this situation?

AppFeedback - Xamarin.iOS

answered on 13 Oct 2022

1 answer

125 views

RadComboBox does not work in ListView Xamarin forms

When I tap on the RadComboBox arrow in listview it gives the below exception. Kindly help

event registration is overwriting existing delegate. either just use events or your own delegate: xamarin.forms.platform.ios.listviewrenderer+listviewdatasource uikit.uiscrollview+_uiscrollviewdelegate

ComboBox

ListView

answered on 10 Oct 2022

1 answer

183 views

Telerik Radlistview Buttons don't work with swipeable content

Hi there,

We use a Radlistview to show a series of items with prices and a +/- to change the amount. We have made those items swipeable, so the user can easily swipe those items away to delete them. See example below (sensitive information is censored):

However, even when users do not swipe the item to the right, they can not interact with the minus button. This seems to be because the button is in the swipeable area. If we make the swipeable area smaller, some of the minus button is interactable, and if we make it larger, the plus button also stops being interactable.

Note that the minus button can't be interacted with even if the button is visible.

Is this design as intended, or is this a bug? If it is intended, what is the recommended way to allow the button to be interacted with, while also allowing the list item to be swiped?

The code used for this is:

<ContentPage
    xmlns:telerikDataControls="clr-namespace:Telerik.XamarinForms.DataControls;assembly=Telerik.XamarinForms.DataControls"
    xmlns:telerikInput="clr-namespace:Telerik.XamarinForms.Input;assembly=Telerik.XamarinForms.Input"
    xmlns:telerikListView="clr-namespace:Telerik.XamarinForms.DataControls.ListView;assembly=Telerik.XamarinForms.DataControls"
    xmlns:telerikPrimitives="clr-namespace:Telerik.XamarinForms.Primitives;assembly=Telerik.XamarinForms.Primitives"
    xmlns:xct="http://xamarin.com/schemas/2020/toolkit">

<telerikDataControls:RadListView
                    Grid.Row="0"
                    IsItemSwipeEnabled="True"
                    ItemTemplateSelector="{StaticResource ReceiptDataSelector}"
                    ItemsSource="{Binding Receipt.ReceiptLines}"
                    SelectedItems="{Binding SelectedReceiptLines}"
                    SelectionMode="Multiple"
                    SwipeOffset="90, 0, 0, 0"
                    SwipeThreshold="20">
                    <telerikDataControls:RadListView.SelectedItemStyle>
                        <telerikListView:ListViewItemStyle BackgroundColor="{StaticResource SelectionAccentColor}" BorderWidth="0" />
                    </telerikDataControls:RadListView.SelectedItemStyle>
                    <telerikDataControls:RadListView.ItemSwipeContentTemplate>
                        <DataTemplate x:DataType="components:IReceiptLine">
                            <Grid
                                Margin="0"
                                Padding="0"
                                ColumnSpacing="0"
                                RowSpacing="0">
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition Width="90" />
                                    <ColumnDefinition Width="*" />
                                </Grid.ColumnDefinitions>
                                <telerikInput:RadButton
                                    Grid.Column="0"
                                    Margin="0"
                                    BackgroundColor="Red"
                                    BorderRadius="0"
                                    Command="{Binding RemoveLineCommand, Source={RelativeSource AncestorType={x:Type local:SalePageModel}}}"
                                    CommandParameter="{Binding}"
                                    FontFamily="FontAwesomeSolid"
                                    FontSize="Medium"
                                    Text="&#xf1f8;"
                                    WidthRequest="90" />
                            </Grid>
                        </DataTemplate>
                    </telerikDataControls:RadListView.ItemSwipeContentTemplate>
                </telerikDataControls:RadListView>

code is:

ListView

answered on 22 Sep 2022

1 answer

157 views

Telerik UI for Xamarin Compatibility info

Hello Team,

May I have an URL with compatibility between TelerikUIXamarin and Xamarin Forms - history and depndencies? Possibly iOS/XCode.

Thanks

Jacek

Installer and Visual Studio Extensions

answered on 22 Sep 2022

0 answers

108 views

RadListView with Switch fires Toggled event upon scrolling

Hi,

I have a Xamarin Forms application using RadListView. As part of the ItemTemplate I have a Switch as described below:

<Switch
                HorizontalOptions="Start"
                IsEnabled="True"
                IsToggled="{Binding Toggle}"
                IsVisible="{Binding IsConfirmCheckVisible}"
                OnColor="Green"
                ThumbColor="Green">
                <Switch.Triggers>
                    <DataTrigger
                        Binding="{Binding Source={x:Reference chkConfirmCheck}, Path=IsToggled}"
                        TargetType="Switch"
                        Value="False">
                        <Setter Property="ThumbColor" Value="Red" />
                        <Setter Property="OnColor" Value="Red" />
                        <Setter Property="IsEnabled" Value="False" />
                    </DataTrigger>
                </Switch.Triggers>
                <Switch.Behaviors>
                    <behaviors:EventToCommandBehavior
                        Command="{Binding Source={x:Reference ParentBindingContext}, Path=BindingContext.UpdateTrickCommand}"
                        CommandParameter="{Binding .}"
                        EventName="Toggled" />
                </Switch.Behaviors>
            </Switch>

If I have a list of items in the RadListView and I start to scroll, then the Toggled event is fired on the Switch. All items for the RadListView is an ObservableCollection and it is loaded when the screen is opened. Is there an issue with the code above that would cause the Toggled event to be fired upon scrolling in a RadListView? This issue only appears on iOS and on a Phone. The iPad and Android devices behave as it's supposed to i.e. Just scrolls as normal and does not fire the Toggle event.

Telerik UI For Xamarin Version: 2022.1.117.1

ListView

ListView - Xamarin.iOS

updated question on 20 Sep 2022

2 answers

107 views

Swipe at ImageEditor

Does Xamarin ImageEditor have swipe gesture ? To change between several images.

Regards

ImageEditor

answered on 06 Sep 2022

1 answer

183 views

TimeSpan Picker DisplayStringFormat

Hello, for the timeSpan Picker spinner I am using this "dd\\:hh\\:mm" format, after selecting I wanna show a different display format, how can I use DisplayStringFormat to show just Hours and Minutes, the form should be like this "hh: mm"?

TimeSpanPicker

answered on 29 Aug 2022

0 answers

94 views

Excuse me, telerik has controls that can be implemented. Does lable's text scroll in the same direction all the time!

Entry

asked on 15 Aug 2022

1 answer

199 views

The watermark on the RadAutoCompleteView does not work for the last version of Xamarin.

please, how I can fix this issue? On the attached files you can see the Xamarin versions (with red has marked works version for the Xamarin.).

AutoCompleteView

answered on 04 Aug 2022

1 answer

88 views

RadAutoCompleteView remote search issue when the Text is empty

Hi, I am using remote search and I need to show all elements after the Focused when the Text is empty (after focused I can get ItemsSource but the Suggestions PopUp is empty) !!! How can I do that?

Thank you...

AutoCompleteView

answered on 03 Aug 2022